Isembart II D'ALTDORF & Hermengarde CAROLINGIANS 
They had a son named Welf I von.
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Personal Details
Isembart II D'ALTDORF
Isembart II was born about 0735 in Altdorf, Uri canton, Switzerland. He died in 0805.
Hermengarde CAROLINGIANS
Hermengarde was born about 0750 in Aachen, Rhineland, Prussia. Hermengarde is no longer alive.
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Children
Welf I von ALTDORF
Welf I von was born in 0778 in Altdorf, Uri Canton, Switzerland. He died in Bavaria.